Door-lock.



F. Pa PPLEGHAR.

DOORLOGK.

APPLIOATIQN FILED SEPT. 29, 1906.

n 912,84. I Patented Feb. 16, 1909.

Muff f U NEED drawn iwi* onirica.

RANK P. PFLEGHAR, OF NEW HAVEN, CONNECTICUT, ASSIGNOR T0 F. P. PFLEGHR iSGN, OF NEW HAVEN, `CONNECTICUT, A FIRM.

noon-Loca.

No. 912,13134.v

Specication of Letters Patent.

Patented Feb. 16, 1909.

Application flied September 29, 1908. Serial No. 336,663.

closing the door from within and from without.

'The forni which l have chosen to illustrate my invention isparticularly adapted to the door of an automobile where the bolt isworked from the inside by means of n lever projecting upwardly from thelock and worked from the outside by means of a' handle.

The object is to provide simple and elicotive means for locking thelatch bolt against movement from either the inside or outside boltmoving device.

In the accompanying drawings, Figure l is a View of the lock looking atit in elevation from the outside as it. appears when in use, F 2 is anend elevat1on, Fig. 3 is a section in. the plano of the line A-*A otFig. 2, Fig. 4 is a section in the plane of the line B--B of Fig. .2,Fig. 5 is a section in the plane of the line C-C of Fig. l, Figo is atop plan view in detail of the locking mechanism, Fig'. 7 is a view indetail showing the locking mechanism in vertical section with the partsin the position which they assume when the bolt is locked, Fig. 8 is asimilar view showing the parts in the position which they assume whenthe. bolt is unlocked, and Fig. 9 is a partial view in detail of thekey.

The latch bolt is denoted by l and is under spring tension as usual`tending to hold it engaged with the keeper. The bolt l is operated fromtheoutside by means of a handle 2, the spindle of which is providedwith'a cam 3, shown in dotted lines, Fig. 3 ad in full lines, Figs. 7and S, which engages a Abolt operating lng or arm 4 fixed 'to anduprising from the bolt 1. rl`he bolt l is also operated from the insideof the vehicle by means of a lever 5 which engages a The parts thus farreferred to may be et any well known or approved form, lay-prosentinvention consisting in means under the control ot' a key for holdingthe bolt l against movement either under the 4pressure ot' the handle 2from the outside or the lever 5 from the inside. To this end I attach tothe barrel 7 ot' the lock a spindle 8 which projects through the end ofthe barrel and is provided with a semieireular rib 9 on its periphery.To aet in conjunction with this spindle .8 and its rib l) l place an arml0 fixed to a pivotal support l1 with its free end in position to belifted by the rib 9 when the spindle S is turned. W hen the arm l0 isdepressed, as shown in Fig. 7, a shoulder 1201i the arm will rest inengagement with the bolt operating lug or arm et, preferably near itsupper `end and will lock the bolt avainst being withdrawn either by thehandije 2 or the lever 5. "When, however, the arm l() is lifted, itsfree end will be removed from its engagement with the lug :t and thebolt will be free to operate.

To hold the arm 10 in position both in its locking and in its releasedadjustment l proizide a spring arm 13 which is conveniently made fast tothe support 1l to which the arm l0 is fixed and thet'ree end of whichcurves under the spindle `S` and rests in engagement with the rib orraised portion 9.

"When in its locking position, shown in Fig. 7, the friction between thefree end "of the spring 18 and the raised portion 9 will be sufficientto hold the spindle S against accidental turning and when in itsreleased,

position, shown in F ig. 8, the spring 13 will rest against the edgffofthe raisedl portion 9 with suflicient friction to prevent the s indle 8from turning to bring the arm l0 into locking position except when it isinten! autism both from inSide and outside may re- ,mziin insubstantially the 'loi'ln in which ihey have heretofore beenconsti-noted.

What l claim' is "She combination with :1 rociinocniing boliY and meansfoi" opuiziing il, the said holt being provided Willi un zuln o1' lngpiojouling therefrom, of :L roi'niry spindle under tho I i in pi'effenceof two witnesses, thi?. Q'ih (luy of control of n key, the Suid spindlelining pi'o- 'f "ided with n raised portion, n rocking :mn moimecl inposition to vngzlge tho sini lng on he boltnnil in p'osiion Loh@ engagedby the aised portion on the spindle and ai Voptonil i\.1' 1906.

FRANK l). PFLEGHR.

lfinessos:

Liann B. BUCKINGHAM, hom J. Goonmo.

